Gas separation: processes – Solid sorption – Inorganic gas or liquid particle sorbed
Reexamination Certificate
2007-02-13
2007-02-13
Lawrence, Frank M. (Department: 1724)
Gas separation: processes
Solid sorption
Inorganic gas or liquid particle sorbed
C095S288000, C203S040000, C203S041000, C096S134000
Reexamination Certificate
active
10369341
ABSTRACT:
Herein is disclosed a method and an apparatus for preparing a highly purified gas from a crude liquid comprising the gas and one or more of a metal, particulates, water vapor, or a volatile impurity. The method comprises: (a) vaporizing the crude liquid, to yield (i) a first vapor stream comprising the gas and (ii) a first liquid stream comprising the gas; (b) removing water vapor, particulates, or both from the first vapor stream, to yield a second vapor stream comprising the gas; (c) condensing the second vapor stream, to yield a second liquid stream comprising the gas; and (d) sparging the second liquid stream with an inert gas, to yield (i) a third vapor stream comprising the gas and (ii) a third liquid stream comprising the highly purified gas. Also disclosed is a method for preparing an adsorbent to effectively remove water vapor from the gas, as well as an adsorbent so prepared.
REFERENCES:
patent: 3522007 (1970-07-01), Frevel et al.
patent: 4138296 (1979-02-01), Balko et al.
patent: 4230673 (1980-10-01), Balko et al.
patent: 5450728 (1995-09-01), Vora et al.
patent: 6004433 (1999-12-01), Borzio et al.
patent: 6063162 (2000-05-01), Orosz et al.
patent: 6110258 (2000-08-01), Fraenkel et al.
patent: 6203692 (2001-03-01), Sarangapani et al.
patent: 6698237 (2004-03-01), Gaskin
patent: 29 26 591 (1981-01-01), None
patent: 1554960 (1969-01-01), None
patent: 1157238 (1969-07-01), None
patent: 52065194 (1977-05-01), None
patent: 55020201 (1980-02-01), None
patent: 58208104 (1983-12-01), None
Hägg, “Purification of Chlorine Gas with Membranes—An Integrated Process Solution for Magnesium Production,”Separation and Purification Technology, 21:261-278 (2001).
Wang et al., “Field Applications of All Vapor Phase Delivery of Electronics Specialty Gases,” presented atSemicon-West(Jul. 1999).
Handbook of Toxic and Hazardous Chemicals and Carcinogens, 3rdEd., vol. I (1991).
“Alkali and Chlorine Products,”Encyclopedia of Chemical Technology, 4thEd., vol. I (1991).
Perrin et al., “Purification of Laboratory Chemicals,”Encyclopedia of Chemical Technology, 4th Ed., vol. I (1988).
Ketelaar, “The Drying and Liquefaction of Chlorine and the Phase Diagram Cl2-H2O,”Electrochemical Technology, 5:143-147 (Mar.-Apr. 1967).
Borzio John P.
Jursich Gregory M.
Kebbekus Earle R.
Zhou Derong
Air Liquide America L.P.
American Air Liquide Inc.
Haynes Elwood L.
Lawrence Frank M.
LandOfFree
Method and apparatus for corrosive gas purification does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for corrosive gas purification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for corrosive gas purification will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3842197